[Payment Request] Adds address normalization on iOS.

ios/chrome/browser/autofill/validation_rules_storage_factory.h

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef IOS_CHROME_BROWSER_AUTOFILL_VALIDATION_RULES_STORAGE_FACTORY_H_
+#define IOS_CHROME_BROWSER_AUTOFILL_VALIDATION_RULES_STORAGE_FACTORY_H_
+
+#include <memory>
+
+#include "base/lazy_instance.h"
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+
+namespace i18n {
+namespace addressinput {
+class Storage;
+}
+}
+
+class JsonPrefStore;
+
+namespace autofill {
+
+// Creates Storage objects, all of which are backed by a common pref store.
+// Adapted for iOS from
+// chrome/browser/autofill/validation_rules_storage_factory.{cc,h}.

[Moe, 2017/04/27 12:19:52]

I'm not an ios/.../autofill owner but these two files are almost identical. I
recommend finding a way to pass the right blocking pool and the use data
directory to the factory in each platform instead. Also it wasn't clear from the
comments what was adapted. I had to patch the CL and diff the files to see what
had changed.

[macourteau, 2017/04/27 18:07:51]

Yep, had discussed this with mathp@ and sebsg@, and we figured doing this was a
good way of doing things. See personal_data_manager_factory.{cc,h}, which is
also forked in ios/.

[Moe, 2017/04/28 09:04:44]

sure. it's up to you and the owners. It's just that more owners (who are
currently mostly OOO) have to lgtm because of the added ios dependencies. But
PLEASE comment what was adapted for iOS for posterity.

[macourteau, 2017/05/01 15:56:22]

Done.

+class ValidationRulesStorageFactory {
+ public:
+  static std::unique_ptr<::i18n::addressinput::Storage> CreateStorage();
+
+ private:
+  friend struct base::LazyInstanceTraitsBase<ValidationRulesStorageFactory>;
+
+  ValidationRulesStorageFactory();
+  ~ValidationRulesStorageFactory();
+
+  scoped_refptr<JsonPrefStore> json_pref_store_;
+
+  DISALLOW_COPY_AND_ASSIGN(ValidationRulesStorageFactory);
+};
+
+}  // namespace autofill
+
+#endif  // IOS_CHROME_BROWSER_AUTOFILL_VALIDATION_RULES_STORAGE_FACTORY_H_